I use my earbuds for listening to music whilst running, so comfort and noise-isolating (noisy gym) are my primary concern. I had the EP-630's for two years, and they were excellent. These MA150's are possibly even better. They are a snug fit, have excellent bass response, and once the music's underway, there is very little ambient noise audible. Audio quality is excellent overall.
Packaging is sparse, but who cares? The product is spot-on.
